ATE204100T1 - REDOX FLOW BATTERY SYSTEM AND CELL STACK - Google Patents

REDOX FLOW BATTERY SYSTEM AND CELL STACK

Info

Publication number
ATE204100T1
ATE204100T1 AT98902174T AT98902174T ATE204100T1 AT E204100 T1 ATE204100 T1 AT E204100T1 AT 98902174 T AT98902174 T AT 98902174T AT 98902174 T AT98902174 T AT 98902174T AT E204100 T1 ATE204100 T1 AT E204100T1
Authority
AT
Austria
Prior art keywords
cell
positive
negative
flow battery
redox flow
Prior art date
Application number
AT98902174T
Other languages
German (de)
Inventor
Alberto Pellegri
Barry Michael Broman
Original Assignee
Squirrel Holdings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Squirrel Holdings Ltd filed Critical Squirrel Holdings Ltd
Application granted granted Critical
Publication of ATE204100T1 publication Critical patent/ATE204100T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/20—Indirect fuel cells, e.g. fuel cells with redox couple being irreversible
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H01M8/184—Regeneration by electrochemical means
    • H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/70—Arrangements for stirring or circulating the electrolyte
    • H01M50/77—Arrangements for stirring or circulating the electrolyte with external circulating path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

A redox flow battery composed of a plurality of cells in electrical series defined by a stacked and repetitive arrangement of a conductive intercell separator having a generally bipolar function, a positive electrode, an ion exchange membrane, a negative electrode and another conductive intercell separator, is operated by flowing a positive half-cell electrolyte containing reducible and oxidizable ions of a first redox couple through the compartments containing the positive electrodes and a negative half-cell electrolyte containing reducible and oxidizable ions of a second redox couple through the compartments containing the negative electrodes in cascade in a counter or equi-current mode. The difference of cell voltage between the first and the last cell of the stack is sensibly reduced and by-pass currents are substantially eliminated thus resulting in an increased overall faradic efficiency. A cell stack architecture provided with ducting for implementing the two counter current cascaded flows of the positive and negative electrolytes is described. The alternated used of cationic and anionic membranes compensate for unbalanced water transport through the membranes.
AT98902174T 1998-01-28 1998-01-28 REDOX FLOW BATTERY SYSTEM AND CELL STACK ATE204100T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1998/000012 WO1999039397A1 (en) 1998-01-28 1998-01-28 Redox flow battery system and cell stack

Publications (1)

Publication Number Publication Date
ATE204100T1 true ATE204100T1 (en) 2001-08-15

Family

ID=11332880

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98902174T ATE204100T1 (en) 1998-01-28 1998-01-28 REDOX FLOW BATTERY SYSTEM AND CELL STACK

Country Status (13)

Country Link
US (1) US6475661B1 (en)
EP (1) EP1051766B1 (en)
JP (1) JP3626096B2 (en)
KR (1) KR100449679B1 (en)
CN (1) CN1174511C (en)
AT (1) ATE204100T1 (en)
AU (1) AU750117B2 (en)
CA (1) CA2317452A1 (en)
DE (1) DE69801341T2 (en)
DK (1) DK1051766T3 (en)
ES (1) ES2162700T3 (en)
PT (1) PT1051766E (en)
WO (1) WO1999039397A1 (en)

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WO1999039397A1 (en) 1999-08-05
US6475661B1 (en) 2002-11-05
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PT1051766E (en) 2002-01-30
DE69801341D1 (en) 2001-09-13
DE69801341T2 (en) 2001-11-22
KR100449679B1 (en) 2004-09-21
AU5877998A (en) 1999-08-16
JP3626096B2 (en) 2005-03-02
AU750117B2 (en) 2002-07-11
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CN1174511C (en) 2004-11-03

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